The phrase "of his own" is often used to denote something that belongs to or is created by a specific person. Synonyms for this phrase include "personal," "individual," "unique," "original," and "proprietary." These words emphasize the exclusive and distinct nature of the possession or creation in question. Other synonyms include "distinctive," "separate," and "particular." These words also suggest a sense of ownership and individuality, which can be useful when describing someone's accomplishments, talents, or possessions. By using synonyms for "of his own," writers can add variety and clarity to their language, and create a more nuanced and precise description of a person's belongings or attributes.